package ioperations;

import Book.Book;
import Book.BookList;

import java.util.Scanner;

/**
 * @author ：陈奕安（3048279304@qq.com）
 * @date ：Created in 2025/5/22 15:02
 * @description：
 * @modified By：
 * @version:
 */
public class DelOperation implements IOPeration{
    @Override
    public void work(BookList bookList) {
        System.out.println("删除图书...");
        Scanner scanner=new Scanner(System.in);
        System.out.println("请输入你要删除图书的书名：");
        String name=scanner.nextLine();
        int currentSize=bookList.getUsedSize();
        int pos=-1;
        int i=0;
        for (;i<currentSize;i++){
            Book book=bookList.getBook(i);
            if (book.getName().equals(name)){
                pos=i;
                break;
            }
        }
        if (i==currentSize){
            System.out.println("没有你要删除的书！");
            return;
        }
        for(int j=pos;j<currentSize-1;j++){
            Book book=bookList.getBook(j+1);
            bookList.setBook(j,book);
        }
        bookList.setBook(currentSize-1,null);
        bookList.setUsedSize(currentSize-1);
        System.out.println("删除成功！");
    }
}